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Henry 925 BES Sealant 10.1oz Tube

$7.05

  • Provides excellent weathering resistance, flexibility and very low VOC through use of a silyl-terminated polyether polymer (STPE)
  • External joint sealant for Henry® air barrier, waterproofing and roofing systems
  • Alternative to silicone and moisture cure urethanes in above-grade construction applications
  • Can be used for construction joints up to 1″ width, subject to dynamic joint movement of +/-25%
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Description

  • Henry 925 Building Envelope Sealant
  •   Meets ASTM C719 ± 35%
  •   Meets Fed Spec TT-S-00230C, Type II, Class A
  •   Meets ASTM C920 Type S, Grade NS, Class 35
  •   Granted SWR Institute Certificate of Validation

Henry 925 BES Sealant is a premium, moisture cure sealant for construction joints subject to dynamic joint movement. This one-part, low odor, moisture cure product provides excellent weathering resistance, flexibility, very low VOC, through use of a silyl-terminated polyether (STPE) polymer. Upon curing, it is paintable with latex based paints. This product is fully compatible with Henry® air barrier, flashing, roofing and waterproofing systems. Questions? Contact us

Data Sheet

Description

925 BES Sealant

Building Envelope Sealant

ASTM D2240 – ASTM D412

ASTM D412

EPA Method 24

Black, Gray, White

32oF to 110oF (0oC to 43oC)

-40oF to 180oF (-40oC to 82oC)

25 ±5 Shore A

13 lbs/gal

450-550%

Initial Set: 60-90 min at 77oF (25oC) Set Through: 24 hours 150-200 psi 40-50% psi 5 g/L925 BES Sealant is a premium, moisture cure sealant for construction joints subject to dynamic joint movement. This one-part, low odor, moisture cure product provides excellent weathering resistance, flexibility, very low VOC, through use of a silyl-terminated polyether (STPE) polymer. Upon curing, it is paintable with latex based paints. This product is fully compatible with Henry® air barrier, flashing, roofing and waterproofing systems.

Usage

  • Building envelope sealant for self-adhered air barriers
  • External joint sealant for Henry® air barrier, waterproofing and roofing systems
  • Alternative to silicone and moisture cure urethanes in above-grade construction applications
  • Construction joints up to 1” (25 mm) width, subject to dynamic joint movement of ± 35% ApplicationSurface Prep: Joints must be sound, smooth, uniform and free from defects and foreign materials. Joints must also be clean, dry, free of frost and all contaminants, such as curing compounds, sealers, or coatings. Sealant adhesion should be tested on each different substrate prior to use by applying a bead allowing to cure thoroughly. To test adhesive strength, pull one end of the bead.

    Apply: Cut nozzle to desired bead size; puncture inner seal. Apply at a 45° angle while pushing sealant ahead of nozzle. The width of the joint should be a minimum of 4 times the anticipated movement. In joints up to 1⁄2” (13 mm) wide, the depth of the sealant should be equal to the width, but not less than 1⁄4” (6 mm). In joints wider than 1⁄2” (13 mm), the depth should be maintained at 1⁄2” (13 mm). Maximum joint width for installation is 1” (25 mm). In vertical and horizontal joints, tooling is necessary to aid contact with the substrate and eliminate air bubbles.

Additional information

Weight 1.2 lbs
Colors

Black, Grey, White

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